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ITS » Master Theses » Rekayasa Kualitas S2
Posted by edy at 28/12/2006 12:43:34  •  22760 Views


HTERACHICAL PRODUCTION PLANNING LOGS PROCESSING PRODUCT AT PT. ARGA TTRTA LESTARF

Author :
USLIANTI, SILVIA 




ABSTRAK

Perencanaan produksi merupakan kegiatan yang sangat penting dari seluruh kegiatan produksi suatu perusahaan. Untuk perusahaan yang memproduksi banyak item produk maka perencanaan akan menjadi lebih rumit. Untuk itu dibuat suatu perencanaan produksi aggregat. Dalam berproduksi perusahaan memiliki tujuan-tujuan yang ingin dicapai dimana tujuan-tujuan tersebut seringkali tidak sejalan antara satu dengan lainnya. Oleh karena itu perlu dibuat suatu perencanaan produksi yang dapat mengakomodasikan tujuan-tujuan tersebut dengan baik. Model goal programming dapat digunakan untuk membuat rencana produksi aggregat yang mengakomodasikan lebih dari satu tujuan yang ingin dicapai oleh perusahaan. Peramalan permintaan produk merupakan input untuk perencanaan produksi aggregate. Dari perencanaan produksi aggregat dilakukan disaggregasi yang kemudian dapat dilanjutkan ke rencana bahan baku. Rencana bahan baku dibuat dalam bentuk ukuran lot pembelian yang ekonomis. Penerapan model goal programming di PT. Arga Tirta Lestari Pontianak dengan tujuan memaksimumkan profit meminimumkan jumlah produk subkontrak meminimumkan biaya overtime tenaga kerja dan meminimumkan jumlah inventory. Hasil yang diperoleh menunjukkan bahwa model goal programming dapat mengakomodasikan tiga tujuan yang ingin dicapai perusahaan sedangkan tujuan untuk meminimumkan jumlah inventory tidak terpenuhi. Perbandingan antara rencana dan realisasi menunjukkan bahwa rencana produksi aggregate dengan model Goal Programming dapat mengurangi biaya overtime tenaga kerja sebesar 64 dari biaya yang digunakan realisasi. Untuk perencanaan bahan baku logs berdasarkan total biaya minimum diperoleh dua metode terbaik yaitu Least Unit Cost LUC dan Wagner-Whitin Algorithm WW.


ABSTRACT

Production planning is a very important activity for a rnanufacturing company. For a company producing a variety of product the production planning will be complicated. In this case its necessary that the company to make an aggregate production planning. Companies have their goals to achieve in production where the goals sometime different from each other. And then company needs to make a production planning that accommodate such goals. Goal programming model can be used for aggregate production planning. This multi objective model can accommodate more than one goal which will be achieved by the company. Product demand forecasting is input for aggregate production planning. From this aggregate production planning futhermore disaggregation must be conducted then it must be continued by raw material planning. The raw material planning is made in economical lot size each order. The goal programming model has been applied at PT. Arga Tirta Lestari Pontianak in goals to maximize profit minimize subcontract product amount minimize overtime labour cost and minimize inventory amount. The results shows that the goal programming model could accommodate three goals that will be achieved by the company except that goal to maximize profit higgoal is to minimize inventory amount. The solution provided by the goal programming model could reduce the niinimize overtime labour cost of the realization by as much as 64 . Least Unit Cost LUC and Wagner-Whitin Algorithm WW methods give the minimum total cost for logs raw material planning.



KeywordsAggregate production planning; Goal programming; Lot sizing
 
Subject:  Perencanaan
Contributor
  1. Dr. Ir. Suparno, MSIE
    Dr. Ir. I. Nyoman Pujawan, M.Eng
Date Create: 28/12/2006
Type: Text
Format: pdf ; 106pages
Language: Indonesian
Identifier: ITS-Master-3100003017840
Collection ID: 3100003017840
Call Number: 658.503 Usl p


Source
Theses Rekayasa Kualitas RT 658.503 Usl p, 2002

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